CA957862A - Tamper-proof, card-operable magnetic locking mechanism - Google Patents
Tamper-proof, card-operable magnetic locking mechanismInfo
- Publication number
- CA957862A CA957862A CA128,380A CA128380A CA957862A CA 957862 A CA957862 A CA 957862A CA 128380 A CA128380 A CA 128380A CA 957862 A CA957862 A CA 957862A
- Authority
- CA
- Canada
- Prior art keywords
- tamper
- proof
- card
- locking mechanism
- magnetic locking
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
- E05B47/0038—Operating or controlling locks or other fastening devices by electric or magnetic means using permanent magnets
- E05B47/0043—Mechanical locks operated by cards having permanent magnets
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C9/00—Individual registration on entry or exit
- G07C9/20—Individual registration on entry or exit involving the use of a pass
- G07C9/215—Individual registration on entry or exit involving the use of a pass the system having a variable access-code, e.g. varied as a function of time
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H27/00—Switches operated by a removable member, e.g. key, plug or plate; Switches operated by setting members according to a single predetermined combination out of several possible settings
- H01H27/10—Switch operated by setting members according to a single predetermined combination out of several possible settings
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B35/00—Locks for use with special keys or a plurality of keys ; keys therefor
- E05B35/08—Locks for use with special keys or a plurality of keys ; keys therefor operable by a plurality of keys
- E05B35/083—Locks for use with special keys or a plurality of keys ; keys therefor operable by a plurality of keys with changeable combination
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T70/00—Locks
- Y10T70/70—Operating mechanism
- Y10T70/7051—Using a powered device [e.g., motor]
- Y10T70/7057—Permanent magnet
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lock And Its Accessories (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14570171A | 1971-05-21 | 1971-05-21 |
Publications (1)
Publication Number | Publication Date |
---|---|
CA957862A true CA957862A (en) | 1974-11-19 |
Family
ID=22514168
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA128,380A Expired CA957862A (en) | 1971-05-21 | 1971-11-23 | Tamper-proof, card-operable magnetic locking mechanism |
Country Status (4)
Country | Link |
---|---|
US (1) | US3705277A (en) |
CA (1) | CA957862A (en) |
DE (1) | DE2224692A1 (en) |
FR (1) | FR2138594B1 (en) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3813663A (en) * | 1972-11-10 | 1974-05-28 | D Perkins | Electrical locking alarm system |
US3851505A (en) * | 1973-05-01 | 1974-12-03 | L Wilkinson | Card holder for vehicles |
US4133194A (en) * | 1976-12-02 | 1979-01-09 | Bruce S. Sedley | Magnetic key operated door lock |
US4312198A (en) * | 1979-08-09 | 1982-01-26 | Sedley Bruce S | Magnetic key operated hotel door lock |
DE3819954A1 (en) * | 1988-06-11 | 1989-12-14 | Schulte Schlagbaum Ag | Locking apparatus with an address store |
US5181407A (en) * | 1991-11-13 | 1993-01-26 | Wu Wen Yin | Card lock and a punchable key card |
EP0756053A3 (en) * | 1995-07-25 | 1997-06-11 | Schulte Schlagbaum Ag | Keycard with partially magnetised areas |
JP2005503505A (en) * | 2001-09-14 | 2005-02-03 | 計電産業株式会社 | Card type key |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2648729A (en) * | 1950-08-09 | 1953-08-11 | Maurice J Noregaard | Lock release operated switch |
US2769873A (en) * | 1952-12-06 | 1956-11-06 | Maurice J Noregaard | Key operated multiple electric circuit switch |
US2931953A (en) * | 1954-06-22 | 1960-04-05 | Carroll Conklin | Magnetically controlled lock and switch |
US3444711A (en) * | 1966-11-04 | 1969-05-20 | Bruce S Sedley | Magnetically operated mechanism and magnetic card |
US3595042A (en) * | 1969-08-25 | 1971-07-27 | Boehme Inc H O | Locking mechanism |
-
1971
- 1971-05-21 US US145701A patent/US3705277A/en not_active Expired - Lifetime
- 1971-11-15 FR FR717140752A patent/FR2138594B1/fr not_active Expired
- 1971-11-23 CA CA128,380A patent/CA957862A/en not_active Expired
-
1972
- 1972-05-19 DE DE19722224692 patent/DE2224692A1/en active Pending
Also Published As
Publication number | Publication date |
---|---|
US3705277A (en) | 1972-12-05 |
FR2138594A1 (en) | 1973-01-05 |
FR2138594B1 (en) | 1973-07-13 |
DE2224692A1 (en) | 1972-12-21 |
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